John C.,
I think a Nano 300 would suit your needs nicely. Two would be even better, but you can get true stereo with only one.
I find they are great for small to medium sized rooms, but they don't project like the Bose or Maui line array systems do.
I haven't decided whether to sell mine. I've had them a couple of years and used them maybe half a dozen times.
You might want to research them and let me know if they would be of interest. I'll make you a killer deal!
If you don't like them you can send 'em back.